Sample size calculation is an essential step in ensuring that analysis of the data which are collected through urveillance systems can support the desired public health objective(s). The main aim of sample size calculations is to determine the sample size needed from the population under study to possibly detect a statistically significant result.
This issue of the ECDC Communicable Disease Threats Report (CDTR) covers the period 16-22 July 2023 and includes updates on avian influenza, Echovirus 11, COVID-19, West Nile virus, poliomyelitis, and botulism.
Since the beginning of the 2023 West Nile Virus (WNV) monitoring season, and as of 19 July 2023, European Union (EU) and European Economic Area (EEA) countries reported 3 human cases of WNV infection. 10 outbreaks among birds were reported in Italy.
Since the beginning of the 2023 West Nile Virus (WNV) monitoring season, and as of 19 July 2023, European Union (EU) and European Economic Area (EEA) countries reported 3 human cases of WNV infection.
Since the beginning of the 2023 West Nile Virus (WNV) monitoring season, and as of 19 July 2023, European Union (EU) and European Economic Area (EEA) countries reported 3 human cases of WNV infection.
ECDC is helping countries in the Western Balkans and Türkiye improve their infectious disease prevention and control systems and public health workforce.